1.ASTM A106 carbon steel equal tee/pipe fittings 2.OD:1/2"-48" WT:SCH10~SCH160 / STD /XS/XXS 3.API%ISO certification ASTM A106 carbon steel equal tee/pipe fittings As the profeesional steel pipes and pipe fittings manufacture in China,we cansupply straight seam steel pipe,spiral steel pipe,seamless steel pipe,elbow, bend,end cap,flange,tee,reducer(concentric and eccentric) and high pressure pipe ...